Revert "Fix Checkstyle errors"

This reverts commit b2c9c6f914.

checkstyle.xml

@@ -20,8 +20,7 @@
 	</module>
 
 	<module name="LineLength">
-		<property name="max" value="120" />
-		<property name="tabWidth" value="4" />
+		<property name="max" value="150" />
 	</module>
 
 	<!-- If you set the basedir property below, then all reported file names 

src/main/java/com/grack/nanojson/JsonTokener.java

@@ -522,8 +522,8 @@ final class JsonTokener {
 									} else if (digit >= 'a' && digit <= 'f') {
 										escaped |= (digit - 'a') + 10;
 									} else {
-										throw createParseException(null, "Expected unicode hex escape character: "
-												+ (char)digit + " (" + digit + ")", false);
+										throw createParseException(null, "Expected unicode hex escape character: " + (char)digit
+												+ " (" + digit + ")", false);
 									}
 								}